KFTPGrabber is a graphical ftp client for KDE.

Features:
  o multiple FTP sessions (tabs) 
  o transfer queue 
  o TLS/SSL support for encrypted connections 
  o partial X509 certificate support for authentication 
  o FXP transfer support (site-to-site) 
  o OTP (one time password) support - s/key, md5, rmd160, sha1 
  o drag and drop support 
  o site bookmarking 
  o encrypted bookmark support (password can be saved to KWallet) 
  o distributed FTP support (PRET) 
  o SSCN and CPSV support 
  o skiplist 

WWW: http://www.kftp.org/